EVU does a better conversion at higher ISO. Less noise than DPP. I haven't tried Canon's RAW Image Task, which I assume is just EVU repackaged for the Rebel XT.
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RAW vs JPEG (PIC)
- Thread starter Manjade
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i think EVU is just the same raw image task
it looks the same and the results and equal
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AJ
http://www.pbase.com/manjade
it looks the same and the results and equal
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AJ
http://www.pbase.com/manjade
Daniella68313
Forum Pro
I am not talkign about extracting jpg, but using the feature in the image resolution setting in-camera. if you go into your menu where you have the option to choose from RAW or jpg Large etc..you can also see an option down there to shoot RAW + jpg at the same time. that will take put 2 files on your CF card from the exact same data, one RAW and one exactly as you would have got if you had choosen jpg Large fine (highest jpg format).
it is convenient to compare RAW and jpg as it is taken from the exact same raw data. there is no need to convert the jpg as it is already there.
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Daniella68313
Forum Pro
ok I have it installed and I tried it. I did not know what DPP standed for 
I actualy got it on the CD with my XT.
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I actualy got it on the CD with my XT.
yes I discarded it very quickly.
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Daniella68313
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in only there was a way to get the exact same thing as the DIGI II with the Canon raw conversion..but they seem to be different.
is there a way to extract the jpg from the RAW and get the exact same thing as the in-camera conversion with the DIGI II?
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is there a way to extract the jpg from the RAW and get the exact same thing as the in-camera conversion with the DIGI II?
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The different RAW converters all use different engines. I tried ACR, RSE, Raw Task, DPP on same RAW file and the colors don't match. I think comparing with "same" setting has little practical use because the engines are different. Comparing "best" result and sharing the parameters to achieve such result is more useful.
Mapleaf
Mapleaf
Daniella68313
Forum Pro
yes in deed..not every camera has the DIGI II and DIGI processor and not all have the same compression for the jpg ..some are much more lossy than other.
for exemple, the Nikon jpg is on the edge of being useable..there is a lot of difference in the nikon d70 between the raw and the jpg and if I had a d70 I woudl be shooting raw 100% of the time, period. I think their jpg format is very bad, although nikonians will say it's good when it suit them and they will say it's bad then it suit them
their jpg have more compression than the Canon and they dont, have as good raw processor as Canon does.
can,t talk about other brand then nikon because I have only seen comparison with nikon and Canon raw vs jpg.
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for exemple, the Nikon jpg is on the edge of being useable..there is a lot of difference in the nikon d70 between the raw and the jpg and if I had a d70 I woudl be shooting raw 100% of the time, period. I think their jpg format is very bad, although nikonians will say it's good when it suit them and they will say it's bad then it suit them
their jpg have more compression than the Canon and they dont, have as good raw processor as Canon does.
can,t talk about other brand then nikon because I have only seen comparison with nikon and Canon raw vs jpg.
the DIGI processor is really good..so good that it does not give much loss in detail. you can shoot RAW + jpg and try it yourself as there is a feature with Canon cameras to shoot raw and jpg large fine at the same time.
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can I really do that?
I have a 300d not a 350d/xt
I'll have to have a look , but i didn't know about that
it must take up LOADS of CF space! ;-)
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AJ
http://www.pbase.com/manjade
I have a 300d not a 350d/xt
I'll have to have a look , but i didn't know about that
it must take up LOADS of CF space! ;-)
--
AJ
http://www.pbase.com/manjade
I think EVU gives me exactly what comes out of the camera as a JPEG. The difference is that in EVU, I can choose any parameter combination I want, just as if I had done it in-camera. If you actually look at EVU, it's the same menu parameter options that are in the camera. As far as I'm concerned, EVU is the camera's internal processor, but on your computer. And Canon RAW Image Task (which is the Rebel XT's packaging of EVU) is no different:
http://www.dpreview.com/reviews/canoneos350d/page17.asp
-... actually they are VERY similar
the the results (with the same settings) are a little different
I would say EVU has less noise and is less "red"
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AJ
http://www.pbase.com/manjade
the the results (with the same settings) are a little different
I would say EVU has less noise and is less "red"
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AJ
http://www.pbase.com/manjade
I think he's talking specifically about Canon EVU and Canon RAW Image Task because the same conversion engine. EVU is what it's called when it comes bundled with the 20D. RAW Image Task is what it's called when it comes bundled with the XT.
What are you basing this statement on?
I've never found DPP to add any noise. Perhaps your talking about the artifacts created by it's unique sharpening method?
I've never found DPP to add any noise. Perhaps your talking about the artifacts created by it's unique sharpening method?
Daniella68313
Forum Pro
if you have the hack you can go to custom function 08 and set the RAW + jpg Large fine but if you want smaller .jpg later on you will have to switch it back to RAW + small. but you can in deed embed a large fine jpg. hope you have the hack but if not, you should really install it
now what I am not sure of is..is the extracted jpg from that will be exactly the same as the .jpg in-camera conversion? I would have to test it.
with XT it is in the menu and no need to extract it as the camera does it for you.
with Xt is it quite easy because it save both raw and jpg on the card, ready to use. another advantage of XT over 300d I guess.
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now what I am not sure of is..is the extracted jpg from that will be exactly the same as the .jpg in-camera conversion? I would have to test it.
with XT it is in the menu and no need to extract it as the camera does it for you.
with Xt is it quite easy because it save both raw and jpg on the card, ready to use. another advantage of XT over 300d I guess.
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Daniella68313
Forum Pro
so can EVU extract the embedded large fine jpg from the RAW (when you choose this in teh custom feature) exactly as the digi processor would do it? is it exactly the same?
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ok now that's good to know. I will test that and if it works I will not shoot RAW + jpg anymore. if it can just do the same job as the digi II. I have not tried that one yet.
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Anthony de Vries
Senior Member
You can't compare RAW and JPG this way. All RAW converters are slightly different. There is no "correct" or unbiased conversion.
There's even a (documented) difference between Adobe's RAW 3.0 and 3.1 conversion.
So it's normal that you'll see a difference between two socalled "un-processed" JPG and RAW shots.
I think it's more usefull to compare two normally processed shots. Because those should look very very similar.
In which case, you might also want to make a difference between a fully in-camera processed JPG, and a post-processed one.
There's even a (documented) difference between Adobe's RAW 3.0 and 3.1 conversion.
So it's normal that you'll see a difference between two socalled "un-processed" JPG and RAW shots.
I think it's more usefull to compare two normally processed shots. Because those should look very very similar.
In which case, you might also want to make a difference between a fully in-camera processed JPG, and a post-processed one.
Ove Sentlig
Senior Member
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as I have been following the RAW / JPEG debate, I thought I would
do a quick test (please excuse me it isn't very scientific): I took
the same shot (50mm @ f/1.8) in RAW and in JPEG (normal) and then
did a 100% crop of each. I took the RAWs through DPP but didn't
change ANYTHING, just saved it as an 8bit tiff, opened it in PS and
saved it as a JPEG (12)
here are the 4 shots
one thing which is obvious is the difference in colour between RAW
and JPEG and the differences in the amount of noise at 1600 (this
is a DPP problem, which is better with RSE)
(btw. the camera settings were contrast -2, everything else at 0)
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AJ
http://www.pbase.com/manjade
Daniella68313
Forum Pro
no way to extract the .jpg from the raw or convert the raw to get the exact same thing as the digi or Digi II does?
Please do not start new thread for private message to me but send them to me via email instead! thanks.
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Jimdetinman9
Forum Enthusiast
That's an enrichment of the image compared to JPEG. Using post processing the exposure can be changed to bring out these colors better and improve the brilliance and contrast. The JPEG on the other hand, is WYSIWYG. jim
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Being a photographer is easy; just take lots and lots of pictures.
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Being a photographer is easy; just take lots and lots of pictures.
The embeded JPEG is exactly the same image you'd get if you had selected that size JPEG only image. The camera processes this image before it saves it, extracting this does not change it at all...
I can not vouch for what happesns when you choose 'covert and save' 'jpeg' option from within EVU or FVU with the 'in camera' settings. I beleive it is very close, if not identical, but I can't say that with any real authority.
I can not vouch for what happesns when you choose 'covert and save' 'jpeg' option from within EVU or FVU with the 'in camera' settings. I beleive it is very close, if not identical, but I can't say that with any real authority.
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